Heat exchanger



s, 1". JACGQKS ET AL HEAT EXCHANGER Filed Dec. 6, 1941 2 Sheets-Sheetl AINZENTORS Feb. 1, 1944. G. T. JACOCKS ETAL HEAT EXCHANGER Filed Dec. 6.1 941 2 Sheets-Sheet 2 INVENTORS E 4T7'OPZEY Patented Felt. 39%

HEAT EXEHANGER George T. .lacocks, New Rochelle, and Robert E.

Giauque, New Transfer Products,

York,

inc,

N. EL, assignors to Heat New York, N. Y., a

corporation of New York Application December 6, 1941, Serial No. 421,914

(ill. hill-55) 4 Claims.

This invention relates to heat exchangers.

A principal object of this invention is the production of a device or"the type specified which will be simple and inexpensive to construct,efiicient in operation, and afford unusual facilities for disassembling.

Other objects and advantages will appear as the description of theparticular physical em-= hodiments selected to illustrate the inventionprogresses and the novel features will he particulerly pointed out inthe appended claims.

In describing the invention in detail and the particular physicalembodiments selected to illustrate the invention, reference will be hadto the accompanying drawings and the several views thereon. in whichlike characters oi reference designate lflze parts throughout theseveral views, and in which:

Figure l. is a side elevational view of a heat exchanger embodying theinvention, some parts being broken away to more clearly show theconstruction; Fig. 2 is a fragmentary top plan View of the device asshown by Fig. 1; Fig. 3 is a view of the end of the device shown :byFig. l as viewed from the right hand end thereof; Fig. 4 is afragmentary view of the device of Fig. l drawn to larger scale; Fig. 5is a cross-sectional view on the plane indicated by the line V-V of Fig.4, viewed in the direction of the arrows at the ends or the line; Fig. 6is a longitudinal sectional view on the plane indicated by the lineVI-VI of Fig. 4, viewed in the direction of the arrows at the ends ofthe line; Fig. 7 is a view corresponding to Fig. 4 exhibiting a modifiedform of the invention; Fig. 8 is a cross-sectional view on the planeindicated by the line Vm-VIE of Fig. 7, viewed in the direction or thearrows at the ends of the line.

The device, in geneeal, is of the ordinary heat exchanger form. in thatit comprises a hollow cylindrical metal body designated generally by 1,provided with; a bundle 2. serving the runstion or the ordinary tubebundle; an inlet iii to one header space giving access to the interiorof x the tunes or the bundle an an outlet o iroln an other header spacegiving access to the interior lid head-er s separated d an outlet forfluid surrounding the outside of the tubes or the hundle 22. the lefthand end or the bundle 2, as viewed 1 is arranged in a conventionalmanner or in accordance with the invention similarly to hand end,insofar applicable,

in the construction shown in Figs. 3.. to d in It is, or course,understood elusive, the shell is interrupted at l entirely around thecircumference and a gasket ring 5 extending circumferentially, aroundthe shell is attached thereto, as by welding The cylindrical body l iscontinued beyond i by the shell extension ill which is also welded tothe gasket ring has at i i.

The extension ill is formed with two cut-away portions, i2 and it, atopposite diametrical points. The spaces formed by these cut-awayportions extend iroin the extreme right hand outer end of the extension5%, as viewed in Fig. i, to the pointi l and are of a width suflicientto pass the nozzle outlet 3, at its diameter 55, longitudinally of theshell.

The nozzle outlet 3 and nozzle outlet c are welded to channel it as atit and it. The chan- .81 is in the general form of an annulussubstantially fitting the inner surface of the extension ill, and isattached preferably Joy welding at it and 20 to head 23.

After extension it is attached, as'at Mend cut outs i2 andiii areremoved, the channel to with attached nozzle outlet 3 and nozzle outlet3! is slipped into place longitudinally of the cylinder l and then theportionsv i2 and it may be replaced, if desired The extension AG hasthrough orifices, as 22, formed at spaced intervals around it.

A retaining ring 23 is positioned in the end oi extension l6 and isformed with orifices 2c corresponding to orifices 22.

.At the time'oi making the complete assemblg', the bundle z is firstpushed into the cylinder l, with the tube head it bearing against anannular gasket 26 placed, against gasket ring d. A gasket M is thenplaced on the other side or the head 25. Then nozzle channel it is putinto place. After ring 23 is put in place, hey locks to are fitted intothe orinces 22 and 2% with the shoulders 2e and to resting against theinside suri'ace of the retaining ring and the outside surrace oi theextension ill, respectively.

In order to hind all parts together fluid tight. the keys 532 e placedposition with'tne lnn== against retaining ring threaded through orince:rneaded threaded screw has an iin- 'hich passes freely through i in thekey lock are all in the positi the iaclt. screws lug ogainst the ch thechannel l5 inwardly the tube head inwardly against gasket 26 and gasketring 8 making all parts fiuid tight.

When removing the head, the jack screws 34 are backed out sufficientlyto have their inner ends clear the key locks 28, whereupon the keys maybe removed and then the key locks may be removed, thus allowing theretaining ring 23, the nozzle channel 16 and the tube head and bundle 2to be removed.

The left hand end of the cylindrical member I may be arranged in theordinaryor usual manher and may have the usual head afiixed therein inany or usual manner. It may also be attached, if desired, by aconstruction similar to the construction of head 2| insofar as the keys,key lock and jack screws are applicable;

In Figs. 6, 7 and 8, a modified construction is shown. In thisconstruction the head 31 is separate from the channel 38 which carriesthe nozzle as 39.

In the modified construction, orifices, as 40, corresponding to orifice22 of Fig. 1, are formed in the extension H, but the key and key lock ismade in a single piece. The key is designated 42 and has a tangextending through the orifices as 40, and corresponding ring orifices43. Each of the keys has an extending arm provided with a. groove 45.The grooves of the keys receive a jack screw retaining ring 46, piercedat intervals, as at 41, to receive a jack screw. The jack screws, as 48,are received in the through against gasket 21 and threaded bore 49 ofthe key and pass through an unthreaded bore 41 of the retaining ring 46.

In the modified form the channel 38 is separate from the channel head 31and gaskets are placed at 50, 5| and 52.

Although we have particularly described one particular physicalembodiment of our idea of means and a modified form thereof,nevertheless, we desire to have it understood that the forms selectedare merely illustrative and do not exhaust the possible physicalembodiments of the idea of mean underlying our invention.

What we claim as new and desire to secure by Letters Patent oi theUnited States, is:

1. A heat exchanger, including, in combination: a hollow cylinder,formed with a plurality of spaced orifices through its wall; a head forthe cylinder; an abutment within the hollow cylinder for restraining theinward movement of the head and means for forcing the head inwardlyincluding keys, each having one end projecting into an orifice and theother end positioned over the head, each key having a through threadedorifice; a threaded jack screw passing through each key and bearing onthe head whereby the head is forced inwardly; and key locks, oneassociated with each key and between the key and the head and having oneend pro- Jecting into an orifice and the other end over the head, eachkey lock formed with a lip lying along the outside of the cylinder andwith a through orifice receiving a jack screw and a retaining ringprovided with through orifices corresponding to the orifices in thecylinder and positioned inside the cylinder and receiving each of thekeys and key locks.

2. In a heat exchanger, in combination: a hollow body; an abutmentwithin the body; a head for the end of the body; means for forcing thehead toward the abutment including a plurality of jack screws; aplurality of keys each formed with a through threaded orifice forreceiving a jack screw with one end of the jack screw bearing againstthe head; the hollow body formed with a plurality of through orifices inits wall, each of the keys having a portion projecting into an orificeand a portion containing the through bore overlying the head; a lock forlooking the keys in position, said lock having a portion extendingthrough an orifice in the wall and a lip overlying the wall and having athrough orifice through which a jack screw extends.

3. In a heat exchanger, in combination: a hollow body; an abutmentwithin the body; a head for the end of the body; means for forcing thehead toward the abutment including a plurality of jack screws; aplurality of keys each formed with a through threaded orifice forreceiving a jack screw with one end of the jack screw bearing againstthe head; the hollow body formed with a plurality of through orifices inits wall, each of the keys having a portion projecting into an orificeand a portion containing the through bore overlying the head; a lock forlocking the keys in position, said lock having a portion extendingthrough an orifice in the wall and a lip overlying the wall and having athrough orifice through which a jack screw extends and retaining meansto hold the keys and key locks in position.

4. In a heat exchanger, in combination: a hollow body; an abutmentwithin the body; a head for the end of the body; means for forcing thehead toward the abutment including a plurality of Jack screws; aplurality of keys each formed with a through threaded orifice for re-'ceiving a jack screw with one end of the jack screw bearing against thehead; the hollow body formed with a plurality of through orifices in itswall, each of the keys having a portion projecting into an orifice and aportion containing the through bore overlying the head; locks forlooking the keys in position, said locks each having a portion extendingthrough one of said orifices in the wall and a lip overlying the walland having a through orifice through which a Jack screw extends; and aretaining ring formed with through orifices in which the respective keysand key locks are positioned.

GEORGE T. JACOCKS. ROBERT E. GIAUQUE.

